- Jul 26, 2007
I am helping a friend get all the servicing on his truck up to date. He is unsure when the last time the trans was serviced (truck has 130K, auto trans). Factory fill is Mercon SP, however most online sources show Mercon LV as the correct fluid to use. The plan is to do 3 drain/fills in close intervals along with changing the filters. Any input is appreciated.